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← ScienceWhich effect occurs when an external combustion engine's condenser pressure rises above design limits?
A)Reduced cycle thermal efficiency✓
B)Increased combustion fuel efficiency
C)Minimal lubrication flow reduction
D)Increased superheated steam production
💡 Explanation
Reduced cycle thermal efficiency occurs because increased condenser pressure elevates the low-temperature reservoir in the Rankine cycle; therefore, the temperature difference between hot and cold reservoirs decreases, restricting the Carnot efficiency, rather than increasing total work output.
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